Home / 73,122.21-109,674.81-20,536.20

Finding the Fourth Proportional to 73,122.21, 109,674.81 and 20,536.20

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Solution

The fourth proportional to 73,122.21, 109,674.81 and 20,536.20 is: 30,801.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,122.21 : 109,674.81 = 20,536.20 : x
  2. Step 2: Convert to fraction form
    73,122.21/109,674.81 = 20,536.20/x
  3. Step 3: Cross multiply
    73,122.21x = 109,674.81 × 20,536.20
  4. Step 4: Simplify right side
    73,122.21x = 2,252,303,833.12
  5. Step 5: Solve for x
    x = 2,252,303,833.12/73,122.21
  6. Step 6: Final answer
    x = 30,801.91

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.